Imagine that you are in a meeting with coworkers or at a gathering of friends. You pull out your cell phone to show a presentation or a video on YouTube. But you don't use the tiny screen; your phone projects a bright, clear image onto a wall or a big screen. Such a technology may be on its way, thanks to a new light-bending silicon chip developed by researchers at Caltech.

Researchers from North Carolina State University have developed a new tool to detect and contain malware that attempts root exploits in Android devices. The tool improves on previous techniques by targeting code written in the C programming language – which is often used to create root exploit malware, whereas the bulk of Android applications are written in Java.

Two Gigabyte AMD-powered Brix systems are now available in the US with prices starting at $260, scaling up based on specs. The entry-level model (barebones) Gigabyte GB-BXA8-5545 is powered by AMD's A8-5545M Richland processor paired with Radeon HD 8510G graphics.

The UK-based Clousto recently began selling the Rikomagic MK902 LE, a small set-top box powered by an ARM-based Rockchip quad-core processor (Cortex-A9) paired with 2GB of RAM and up to 16GB of storage.

A team of computer scientists at the University of California, San Diego, has taken an unprecedented, in-depth look at how malware operators use the computers they infect to mine Bitcoin, a virtual currency whose value is highly volatile.

Imagination Technologies is probably best known for its PowerVR graphics processors featured in Apple's wildly popular iOS mobile devices, as PowerVR S-series chips have powered every Apple mobile device since the third-generation iPhone 3GS.

Computer chips keep getting faster because transistors keep getting smaller. But the chips themselves are as big as ever, so data moving around the chip, and between chips and main memory, has to travel just as far. As transistors get faster, the cost of moving data becomes, proportionally, a more severe limitation.